![]() ![]() It provided power for three times as long as the poorest performers, which came from Revo and Noco. The best-performing unit was the Antigravity Batteries XP-10. Where we did see lots of variance was in the units’ abilities to charge devices, such as tablets and laptops. When the battery packs were at room temperature, most were able to successfully jump start a frozen car battery. With both the car battery and the jump starter at zero degrees, none of the units were able to jump start even the weak car batteries, let alone a dead battery.Then the Pilot InstaBoost struggled, dropping below its competitors in the ratings. It was when the temps dropped below freezing that the differences appeared. Most battery packs could start a car battery at room temperature.When it came to jump-starting vehicles, performance between the units was nearly identical. We also tested the units to see how long they could provide power to smaller devices such as tablets and mobile phones. The fourth test had the batteries cooled to 0 degrees with the jump starters at room temperature. ![]() For the third test, we chilled both the weak batteries and the booster packs down to 0-degrees Fahrenheit. In the first and second test, both the battery and the jumper packs were at room temperature. We purchased 10 mini jump starters, ranging in price from $70 to $125, and ran four separate tests on the car batteries, using different states of charge, working down to completely dead. ![]()
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